--- /dev/null
+/*
+ * Copyright (c) 2008-2016 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing official
+ * policies, either expressed or implied, of the FreeBSD Project.
+ */
+
+#include "efx.h"
+#include "efx_impl.h"
+
+#if EFSYS_OPT_MCDI
+
+/*
+ * There are three versions of the MCDI interface:
+ * - MCDIv0: Siena BootROM. Transport uses MCDIv1 headers.
+ * - MCDIv1: Siena firmware and Huntington BootROM.
+ * - MCDIv2: EF10 firmware (Huntington/Medford) and Medford BootROM.
+ * Transport uses MCDIv2 headers.
+ *
+ * MCDIv2 Header NOT_EPOCH flag
+ * ----------------------------
+ * A new epoch begins at initial startup or after an MC reboot, and defines when
+ * the MC should reject stale MCDI requests.
+ *
+ * The first MCDI request sent by the host should contain NOT_EPOCH=0, and all
+ * subsequent requests (until the next MC reboot) should contain NOT_EPOCH=1.
+ *
+ * After rebooting the MC will fail all requests with NOT_EPOCH=1 by writing a
+ * response with ERROR=1 and DATALEN=0 until a request is seen with NOT_EPOCH=0.
+ */
+
+
+
+#if EFSYS_OPT_SIENA
+
+static const efx_mcdi_ops_t __efx_mcdi_siena_ops = {
+ siena_mcdi_init, /* emco_init */
+ siena_mcdi_send_request, /* emco_send_request */
+ siena_mcdi_poll_reboot, /* emco_poll_reboot */
+ siena_mcdi_poll_response, /* emco_poll_response */
+ siena_mcdi_read_response, /* emco_read_response */
+ siena_mcdi_fini, /* emco_fini */
+ siena_mcdi_feature_supported, /* emco_feature_supported */
+ siena_mcdi_get_timeout, /* emco_get_timeout */
+};
+
+#endif /* EFSYS_OPT_SIENA */
+
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+
+static const efx_mcdi_ops_t __efx_mcdi_ef10_ops = {
+ ef10_mcdi_init, /* emco_init */
+ ef10_mcdi_send_request, /* emco_send_request */
+ ef10_mcdi_poll_reboot, /* emco_poll_reboot */
+ ef10_mcdi_poll_response, /* emco_poll_response */
+ ef10_mcdi_read_response, /* emco_read_response */
+ ef10_mcdi_fini, /* emco_fini */
+ ef10_mcdi_feature_supported, /* emco_feature_supported */
+ ef10_mcdi_get_timeout, /* emco_get_timeout */
+};
+
+#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
+
+
+
+ __checkReturn efx_rc_t
+efx_mcdi_init(
+ __in efx_nic_t *enp,
+ __in const efx_mcdi_transport_t *emtp)
+{
+ const efx_mcdi_ops_t *emcop;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, ==, 0);
+
+ switch (enp->en_family) {
+#if EFSYS_OPT_SIENA
+ case EFX_FAMILY_SIENA:
+ emcop = &__efx_mcdi_siena_ops;
+ break;
+#endif /* EFSYS_OPT_SIENA */
+
+#if EFSYS_OPT_HUNTINGTON
+ case EFX_FAMILY_HUNTINGTON:
+ emcop = &__efx_mcdi_ef10_ops;
+ break;
+#endif /* EFSYS_OPT_HUNTINGTON */
+
+#if EFSYS_OPT_MEDFORD
+ case EFX_FAMILY_MEDFORD:
+ emcop = &__efx_mcdi_ef10_ops;
+ break;
+#endif /* EFSYS_OPT_MEDFORD */
+
+ default:
+ EFSYS_ASSERT(0);
+ rc = ENOTSUP;
+ goto fail1;
+ }
+
+ if (enp->en_features & EFX_FEATURE_MCDI_DMA) {
+ /* MCDI requires a DMA buffer in host memory */
+ if ((emtp == NULL) || (emtp->emt_dma_mem) == NULL) {
+ rc = EINVAL;
+ goto fail2;
+ }
+ }
+ enp->en_mcdi.em_emtp = emtp;
+
+ if (emcop != NULL && emcop->emco_init != NULL) {
+ if ((rc = emcop->emco_init(enp, emtp)) != 0)
+ goto fail3;
+ }
+
+ enp->en_mcdi.em_emcop = emcop;
+ enp->en_mod_flags |= EFX_MOD_MCDI;
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ enp->en_mcdi.em_emcop = NULL;
+ enp->en_mcdi.em_emtp = NULL;
+ enp->en_mod_flags &= ~EFX_MOD_MCDI;
+
+ return (rc);
+}
+
+ void
+efx_mcdi_fini(
+ __in efx_nic_t *enp)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, ==, EFX_MOD_MCDI);
+
+ if (emcop != NULL && emcop->emco_fini != NULL)
+ emcop->emco_fini(enp);
+
+ emip->emi_port = 0;
+ emip->emi_aborted = 0;
+
+ enp->en_mcdi.em_emcop = NULL;
+ enp->en_mod_flags &= ~EFX_MOD_MCDI;
+}
+
+ void
+efx_mcdi_new_epoch(
+ __in efx_nic_t *enp)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ efsys_lock_state_t state;
+
+ /* Start a new epoch (allow fresh MCDI requests to succeed) */
+ EFSYS_LOCK(enp->en_eslp, state);
+ emip->emi_new_epoch = B_TRUE;
+ EFSYS_UNLOCK(enp->en_eslp, state);
+}
+
+static void
+efx_mcdi_send_request(
+ __in efx_nic_t *enp,
+ __in void *hdrp,
+ __in size_t hdr_len,
+ __in void *sdup,
+ __in size_t sdu_len)
+{
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+
+ emcop->emco_send_request(enp, hdrp, hdr_len, sdup, sdu_len);
+}
+
+static efx_rc_t
+efx_mcdi_poll_reboot(
+ __in efx_nic_t *enp)
+{
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+ efx_rc_t rc;
+
+ rc = emcop->emco_poll_reboot(enp);
+ return (rc);
+}
+
+static boolean_t
+efx_mcdi_poll_response(
+ __in efx_nic_t *enp)
+{
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+ boolean_t available;
+
+ available = emcop->emco_poll_response(enp);
+ return (available);
+}
+
+static void
+efx_mcdi_read_response(
+ __in efx_nic_t *enp,
+ __out void *bufferp,
+ __in size_t offset,
+ __in size_t length)
+{
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+
+ emcop->emco_read_response(enp, bufferp, offset, length);
+}
+
+ void
+efx_mcdi_request_start(
+ __in efx_nic_t *enp,
+ __in efx_mcdi_req_t *emrp,
+ __in boolean_t ev_cpl)
+{
+#if EFSYS_OPT_MCDI_LOGGING
+ const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+#endif
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ efx_dword_t hdr[2];
+ size_t hdr_len;
+ unsigned int max_version;
+ unsigned int seq;
+ unsigned int xflags;
+ boolean_t new_epoch;
+ efsys_lock_state_t state;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
+ EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
+
+ /*
+ * efx_mcdi_request_start() is naturally serialised against both
+ * efx_mcdi_request_poll() and efx_mcdi_ev_cpl()/efx_mcdi_ev_death(),
+ * by virtue of there only being one outstanding MCDI request.
+ * Unfortunately, upper layers may also call efx_mcdi_request_abort()
+ * at any time, to timeout a pending mcdi request, That request may
+ * then subsequently complete, meaning efx_mcdi_ev_cpl() or
+ * efx_mcdi_ev_death() may end up running in parallel with
+ * efx_mcdi_request_start(). This race is handled by ensuring that
+ * %emi_pending_req, %emi_ev_cpl and %emi_seq are protected by the
+ * en_eslp lock.
+ */
+ EFSYS_LOCK(enp->en_eslp, state);
+ EFSYS_ASSERT(emip->emi_pending_req == NULL);
+ emip->emi_pending_req = emrp;
+ emip->emi_ev_cpl = ev_cpl;
+ emip->emi_poll_cnt = 0;
+ seq = emip->emi_seq++ & EFX_MASK32(MCDI_HEADER_SEQ);
+ new_epoch = emip->emi_new_epoch;
+ max_version = emip->emi_max_version;
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ xflags = 0;
+ if (ev_cpl)
+ xflags |= MCDI_HEADER_XFLAGS_EVREQ;
+
+ /*
+ * Huntington firmware supports MCDIv2, but the Huntington BootROM only
+ * supports MCDIv1. Use MCDIv1 headers for MCDIv1 commands where
+ * possible to support this.
+ */
+ if ((max_version >= 2) &&
+ ((emrp->emr_cmd > MC_CMD_CMD_SPACE_ESCAPE_7) ||
+ (emrp->emr_in_length > MCDI_CTL_SDU_LEN_MAX_V1))) {
+ /* Construct MCDI v2 header */
+ hdr_len = sizeof (hdr);
+ EFX_POPULATE_DWORD_8(hdr[0],
+ MCDI_HEADER_CODE, MC_CMD_V2_EXTN,
+ MCDI_HEADER_RESYNC, 1,
+ MCDI_HEADER_DATALEN, 0,
+ MCDI_HEADER_SEQ, seq,
+ MCDI_HEADER_NOT_EPOCH, new_epoch ? 0 : 1,
+ MCDI_HEADER_ERROR, 0,
+ MCDI_HEADER_RESPONSE, 0,
+ MCDI_HEADER_XFLAGS, xflags);
+
+ EFX_POPULATE_DWORD_2(hdr[1],
+ MC_CMD_V2_EXTN_IN_EXTENDED_CMD, emrp->emr_cmd,
+ MC_CMD_V2_EXTN_IN_ACTUAL_LEN, emrp->emr_in_length);
+ } else {
+ /* Construct MCDI v1 header */
+ hdr_len = sizeof (hdr[0]);
+ EFX_POPULATE_DWORD_8(hdr[0],
+ MCDI_HEADER_CODE, emrp->emr_cmd,
+ MCDI_HEADER_RESYNC, 1,
+ MCDI_HEADER_DATALEN, emrp->emr_in_length,
+ MCDI_HEADER_SEQ, seq,
+ MCDI_HEADER_NOT_EPOCH, new_epoch ? 0 : 1,
+ MCDI_HEADER_ERROR, 0,
+ MCDI_HEADER_RESPONSE, 0,
+ MCDI_HEADER_XFLAGS, xflags);
+ }
+
+#if EFSYS_OPT_MCDI_LOGGING
+ if (emtp->emt_logger != NULL) {
+ emtp->emt_logger(emtp->emt_context, EFX_LOG_MCDI_REQUEST,
+ &hdr[0], hdr_len,
+ emrp->emr_in_buf, emrp->emr_in_length);
+ }
+#endif /* EFSYS_OPT_MCDI_LOGGING */
+
+ efx_mcdi_send_request(enp, &hdr[0], hdr_len,
+ emrp->emr_in_buf, emrp->emr_in_length);
+}
+
+
+static void
+efx_mcdi_read_response_header(
+ __in efx_nic_t *enp,
+ __inout efx_mcdi_req_t *emrp)
+{
+#if EFSYS_OPT_MCDI_LOGGING
+ const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+#endif /* EFSYS_OPT_MCDI_LOGGING */
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ efx_dword_t hdr[2];
+ unsigned int hdr_len;
+ unsigned int data_len;
+ unsigned int seq;
+ unsigned int cmd;
+ unsigned int error;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT(emrp != NULL);
+
+ efx_mcdi_read_response(enp, &hdr[0], 0, sizeof (hdr[0]));
+ hdr_len = sizeof (hdr[0]);
+
+ cmd = EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_CODE);
+ seq = EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_SEQ);
+ error = EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_ERROR);
+
+ if (cmd != MC_CMD_V2_EXTN) {
+ data_len = EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_DATALEN);
+ } else {
+ efx_mcdi_read_response(enp, &hdr[1], hdr_len, sizeof (hdr[1]));
+ hdr_len += sizeof (hdr[1]);
+
+ cmd = EFX_DWORD_FIELD(hdr[1], MC_CMD_V2_EXTN_IN_EXTENDED_CMD);
+ data_len =
+ EFX_DWORD_FIELD(hdr[1], MC_CMD_V2_EXTN_IN_ACTUAL_LEN);
+ }
+
+ if (error && (data_len == 0)) {
+ /* The MC has rebooted since the request was sent. */
+ EFSYS_SPIN(EFX_MCDI_STATUS_SLEEP_US);
+ efx_mcdi_poll_reboot(enp);
+ rc = EIO;
+ goto fail1;
+ }
+ if ((cmd != emrp->emr_cmd) ||
+ (seq != ((emip->emi_seq - 1) & EFX_MASK32(MCDI_HEADER_SEQ)))) {
+ /* Response is for a different request */
+ rc = EIO;
+ goto fail2;
+ }
+ if (error) {
+ efx_dword_t err[2];
+ unsigned int err_len = MIN(data_len, sizeof (err));
+ int err_code = MC_CMD_ERR_EPROTO;
+ int err_arg = 0;
+
+ /* Read error code (and arg num for MCDI v2 commands) */
+ efx_mcdi_read_response(enp, &err, hdr_len, err_len);
+
+ if (err_len >= (MC_CMD_ERR_CODE_OFST + sizeof (efx_dword_t)))
+ err_code = EFX_DWORD_FIELD(err[0], EFX_DWORD_0);
+#ifdef WITH_MCDI_V2
+ if (err_len >= (MC_CMD_ERR_ARG_OFST + sizeof (efx_dword_t)))
+ err_arg = EFX_DWORD_FIELD(err[1], EFX_DWORD_0);
+#endif
+ emrp->emr_err_code = err_code;
+ emrp->emr_err_arg = err_arg;
+
+#if EFSYS_OPT_MCDI_PROXY_AUTH
+ if ((err_code == MC_CMD_ERR_PROXY_PENDING) &&
+ (err_len == sizeof (err))) {
+ /*
+ * The MCDI request would normally fail with EPERM, but
+ * firmware has forwarded it to an authorization agent
+ * attached to a privileged PF.
+ *
+ * Save the authorization request handle. The client
+ * must wait for a PROXY_RESPONSE event, or timeout.
+ */
+ emrp->emr_proxy_handle = err_arg;
+ }
+#endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
+
+#if EFSYS_OPT_MCDI_LOGGING
+ if (emtp->emt_logger != NULL) {
+ emtp->emt_logger(emtp->emt_context,
+ EFX_LOG_MCDI_RESPONSE,
+ &hdr[0], hdr_len,
+ &err[0], err_len);
+ }
+#endif /* EFSYS_OPT_MCDI_LOGGING */
+
+ if (!emrp->emr_quiet) {
+ EFSYS_PROBE3(mcdi_err_arg, int, emrp->emr_cmd,
+ int, err_code, int, err_arg);
+ }
+
+ rc = efx_mcdi_request_errcode(err_code);
+ goto fail3;
+ }
+
+ emrp->emr_rc = 0;
+ emrp->emr_out_length_used = data_len;
+#if EFSYS_OPT_MCDI_PROXY_AUTH
+ emrp->emr_proxy_handle = 0;
+#endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
+ return;
+
+fail3:
+fail2:
+fail1:
+ emrp->emr_rc = rc;
+ emrp->emr_out_length_used = 0;
+}
+
+static void
+efx_mcdi_finish_response(
+ __in efx_nic_t *enp,
+ __in efx_mcdi_req_t *emrp)
+{
+#if EFSYS_OPT_MCDI_LOGGING
+ const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+#endif /* EFSYS_OPT_MCDI_LOGGING */
+ efx_dword_t hdr[2];
+ unsigned int hdr_len;
+ size_t bytes;
+
+ if (emrp->emr_out_buf == NULL)
+ return;
+
+ /* Read the command header to detect MCDI response format */
+ hdr_len = sizeof (hdr[0]);
+ efx_mcdi_read_response(enp, &hdr[0], 0, hdr_len);
+ if (EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_CODE) == MC_CMD_V2_EXTN) {
+ /*
+ * Read the actual payload length. The length given in the event
+ * is only correct for responses with the V1 format.
+ */
+ efx_mcdi_read_response(enp, &hdr[1], hdr_len, sizeof (hdr[1]));
+ hdr_len += sizeof (hdr[1]);
+
+ emrp->emr_out_length_used = EFX_DWORD_FIELD(hdr[1],
+ MC_CMD_V2_EXTN_IN_ACTUAL_LEN);
+ }
+
+ /* Copy payload out into caller supplied buffer */
+ bytes = MIN(emrp->emr_out_length_used, emrp->emr_out_length);
+ efx_mcdi_read_response(enp, emrp->emr_out_buf, hdr_len, bytes);
+
+#if EFSYS_OPT_MCDI_LOGGING
+ if (emtp->emt_logger != NULL) {
+ emtp->emt_logger(emtp->emt_context,
+ EFX_LOG_MCDI_RESPONSE,
+ &hdr[0], hdr_len,
+ emrp->emr_out_buf, bytes);
+ }
+#endif /* EFSYS_OPT_MCDI_LOGGING */
+}
+
+
+ __checkReturn boolean_t
+efx_mcdi_request_poll(
+ __in efx_nic_t *enp)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ efx_mcdi_req_t *emrp;
+ efsys_lock_state_t state;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
+ EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
+
+ /* Serialise against post-watchdog efx_mcdi_ev* */
+ EFSYS_LOCK(enp->en_eslp, state);
+
+ EFSYS_ASSERT(emip->emi_pending_req != NULL);
+ EFSYS_ASSERT(!emip->emi_ev_cpl);
+ emrp = emip->emi_pending_req;
+
+ /* Check for reboot atomically w.r.t efx_mcdi_request_start */
+ if (emip->emi_poll_cnt++ == 0) {
+ if ((rc = efx_mcdi_poll_reboot(enp)) != 0) {
+ emip->emi_pending_req = NULL;
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ /* Reboot/Assertion */
+ if (rc == EIO || rc == EINTR)
+ efx_mcdi_raise_exception(enp, emrp, rc);
+
+ goto fail1;
+ }
+ }
+
+ /* Check if a response is available */
+ if (efx_mcdi_poll_response(enp) == B_FALSE) {
+ EFSYS_UNLOCK(enp->en_eslp, state);
+ return (B_FALSE);
+ }
+
+ /* Read the response header */
+ efx_mcdi_read_response_header(enp, emrp);
+
+ /* Request complete */
+ emip->emi_pending_req = NULL;
+
+ /* Ensure stale MCDI requests fail after an MC reboot. */
+ emip->emi_new_epoch = B_FALSE;
+
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ if ((rc = emrp->emr_rc) != 0)
+ goto fail2;
+
+ efx_mcdi_finish_response(enp, emrp);
+ return (B_TRUE);
+
+fail2:
+ if (!emrp->emr_quiet)
+ EFSYS_PROBE(fail2);
+fail1:
+ if (!emrp->emr_quiet)
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (B_TRUE);
+}
+
+ __checkReturn boolean_t
+efx_mcdi_request_abort(
+ __in efx_nic_t *enp)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ efx_mcdi_req_t *emrp;
+ boolean_t aborted;
+ efsys_lock_state_t state;
+
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
+ EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
+
+ /*
+ * efx_mcdi_ev_* may have already completed this event, and be
+ * spinning/blocked on the upper layer lock. So it *is* legitimate
+ * to for emi_pending_req to be NULL. If there is a pending event
+ * completed request, then provide a "credit" to allow
+ * efx_mcdi_ev_cpl() to accept a single spurious completion.
+ */
+ EFSYS_LOCK(enp->en_eslp, state);
+ emrp = emip->emi_pending_req;
+ aborted = (emrp != NULL);
+ if (aborted) {
+ emip->emi_pending_req = NULL;
+
+ /* Error the request */
+ emrp->emr_out_length_used = 0;
+ emrp->emr_rc = ETIMEDOUT;
+
+ /* Provide a credit for seqno/emr_pending_req mismatches */
+ if (emip->emi_ev_cpl)
+ ++emip->emi_aborted;
+
+ /*
+ * The upper layer has called us, so we don't
+ * need to complete the request.
+ */
+ }
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ return (aborted);
+}
+
+ void
+efx_mcdi_get_timeout(
+ __in efx_nic_t *enp,
+ __in efx_mcdi_req_t *emrp,
+ __out uint32_t *timeoutp)
+{
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+
+ emcop->emco_get_timeout(enp, emrp, timeoutp);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_request_errcode(
+ __in unsigned int err)
+{
+
+ switch (err) {
+ /* MCDI v1 */
+ case MC_CMD_ERR_EPERM:
+ return (EACCES);
+ case MC_CMD_ERR_ENOENT:
+ return (ENOENT);
+ case MC_CMD_ERR_EINTR:
+ return (EINTR);
+ case MC_CMD_ERR_EACCES:
+ return (EACCES);
+ case MC_CMD_ERR_EBUSY:
+ return (EBUSY);
+ case MC_CMD_ERR_EINVAL:
+ return (EINVAL);
+ case MC_CMD_ERR_EDEADLK:
+ return (EDEADLK);
+ case MC_CMD_ERR_ENOSYS:
+ return (ENOTSUP);
+ case MC_CMD_ERR_ETIME:
+ return (ETIMEDOUT);
+ case MC_CMD_ERR_ENOTSUP:
+ return (ENOTSUP);
+ case MC_CMD_ERR_EALREADY:
+ return (EALREADY);
+
+ /* MCDI v2 */
+ case MC_CMD_ERR_EEXIST:
+ return (EEXIST);
+#ifdef MC_CMD_ERR_EAGAIN
+ case MC_CMD_ERR_EAGAIN:
+ return (EAGAIN);
+#endif
+#ifdef MC_CMD_ERR_ENOSPC
+ case MC_CMD_ERR_ENOSPC:
+ return (ENOSPC);
+#endif
+ case MC_CMD_ERR_ERANGE:
+ return (ERANGE);
+
+ case MC_CMD_ERR_ALLOC_FAIL:
+ return (ENOMEM);
+ case MC_CMD_ERR_NO_VADAPTOR:
+ return (ENOENT);
+ case MC_CMD_ERR_NO_EVB_PORT:
+ return (ENOENT);
+ case MC_CMD_ERR_NO_VSWITCH:
+ return (ENODEV);
+ case MC_CMD_ERR_VLAN_LIMIT:
+ return (EINVAL);
+ case MC_CMD_ERR_BAD_PCI_FUNC:
+ return (ENODEV);
+ case MC_CMD_ERR_BAD_VLAN_MODE:
+ return (EINVAL);
+ case MC_CMD_ERR_BAD_VSWITCH_TYPE:
+ return (EINVAL);
+ case MC_CMD_ERR_BAD_VPORT_TYPE:
+ return (EINVAL);
+ case MC_CMD_ERR_MAC_EXIST:
+ return (EEXIST);
+
+ case MC_CMD_ERR_PROXY_PENDING:
+ return (EAGAIN);
+
+ default:
+ EFSYS_PROBE1(mc_pcol_error, int, err);
+ return (EIO);
+ }
+}
+
+ void
+efx_mcdi_raise_exception(
+ __in efx_nic_t *enp,
+ __in_opt efx_mcdi_req_t *emrp,
+ __in int rc)
+{
+ const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+ efx_mcdi_exception_t exception;
+
+ /* Reboot or Assertion failure only */
+ EFSYS_ASSERT(rc == EIO || rc == EINTR);
+
+ /*
+ * If MC_CMD_REBOOT causes a reboot (dependent on parameters),
+ * then the EIO is not worthy of an exception.
+ */
+ if (emrp != NULL && emrp->emr_cmd == MC_CMD_REBOOT && rc == EIO)
+ return;
+
+ exception = (rc == EIO)
+ ? EFX_MCDI_EXCEPTION_MC_REBOOT
+ : EFX_MCDI_EXCEPTION_MC_BADASSERT;
+
+ emtp->emt_exception(emtp->emt_context, exception);
+}
+
+ void
+efx_mcdi_execute(
+ __in efx_nic_t *enp,
+ __inout efx_mcdi_req_t *emrp)
+{
+ const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
+ EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
+
+ emrp->emr_quiet = B_FALSE;
+ emtp->emt_execute(emtp->emt_context, emrp);
+}
+
+ void
+efx_mcdi_execute_quiet(
+ __in efx_nic_t *enp,
+ __inout efx_mcdi_req_t *emrp)
+{
+ const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
+ EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
+
+ emrp->emr_quiet = B_TRUE;
+ emtp->emt_execute(emtp->emt_context, emrp);
+}
+
+ void
+efx_mcdi_ev_cpl(
+ __in efx_nic_t *enp,
+ __in unsigned int seq,
+ __in unsigned int outlen,
+ __in int errcode)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+ efx_mcdi_req_t *emrp;
+ efsys_lock_state_t state;
+
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
+ EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
+
+ /*
+ * Serialise against efx_mcdi_request_poll()/efx_mcdi_request_start()
+ * when we're completing an aborted request.
+ */
+ EFSYS_LOCK(enp->en_eslp, state);
+ if (emip->emi_pending_req == NULL || !emip->emi_ev_cpl ||
+ (seq != ((emip->emi_seq - 1) & EFX_MASK32(MCDI_HEADER_SEQ)))) {
+ EFSYS_ASSERT(emip->emi_aborted > 0);
+ if (emip->emi_aborted > 0)
+ --emip->emi_aborted;
+ EFSYS_UNLOCK(enp->en_eslp, state);
+ return;
+ }
+
+ emrp = emip->emi_pending_req;
+ emip->emi_pending_req = NULL;
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ if (emip->emi_max_version >= 2) {
+ /* MCDIv2 response details do not fit into an event. */
+ efx_mcdi_read_response_header(enp, emrp);
+ } else {
+ if (errcode != 0) {
+ if (!emrp->emr_quiet) {
+ EFSYS_PROBE2(mcdi_err, int, emrp->emr_cmd,
+ int, errcode);
+ }
+ emrp->emr_out_length_used = 0;
+ emrp->emr_rc = efx_mcdi_request_errcode(errcode);
+ } else {
+ emrp->emr_out_length_used = outlen;
+ emrp->emr_rc = 0;
+ }
+ }
+ if (errcode == 0) {
+ efx_mcdi_finish_response(enp, emrp);
+ }
+
+ emtp->emt_ev_cpl(emtp->emt_context);
+}
+
+#if EFSYS_OPT_MCDI_PROXY_AUTH
+
+ __checkReturn efx_rc_t
+efx_mcdi_get_proxy_handle(
+ __in efx_nic_t *enp,
+ __in efx_mcdi_req_t *emrp,
+ __out uint32_t *handlep)
+{
+ efx_rc_t rc;
+
+ /*
+ * Return proxy handle from MCDI request that returned with error
+ * MC_MCD_ERR_PROXY_PENDING. This handle is used to wait for a matching
+ * PROXY_RESPONSE event.
+ */
+ if ((emrp == NULL) || (handlep == NULL)) {
+ rc = EINVAL;
+ goto fail1;
+ }
+ if ((emrp->emr_rc != 0) &&
+ (emrp->emr_err_code == MC_CMD_ERR_PROXY_PENDING)) {
+ *handlep = emrp->emr_proxy_handle;
+ rc = 0;
+ } else {
+ *handlep = 0;
+ rc = ENOENT;
+ }
+ return (rc);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+ return (rc);
+}
+
+ void
+efx_mcdi_ev_proxy_response(
+ __in efx_nic_t *enp,
+ __in unsigned int handle,
+ __in unsigned int status)
+{
+ const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+ efx_rc_t rc;
+
+ /*
+ * Handle results of an authorization request for a privileged MCDI
+ * command. If authorization was granted then we must re-issue the
+ * original MCDI request. If authorization failed or timed out,
+ * then the original MCDI request should be completed with the
+ * result code from this event.
+ */
+ rc = (status == 0) ? 0 : efx_mcdi_request_errcode(status);
+
+ emtp->emt_ev_proxy_response(emtp->emt_context, handle, rc);
+}
+#endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
+
+ void
+efx_mcdi_ev_death(
+ __in efx_nic_t *enp,
+ __in int rc)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
+ efx_mcdi_req_t *emrp = NULL;
+ boolean_t ev_cpl;
+ efsys_lock_state_t state;
+
+ /*
+ * The MCDI request (if there is one) has been terminated, either
+ * by a BADASSERT or REBOOT event.
+ *
+ * If there is an outstanding event-completed MCDI operation, then we
+ * will never receive the completion event (because both MCDI
+ * completions and BADASSERT events are sent to the same evq). So
+ * complete this MCDI op.
+ *
+ * This function might run in parallel with efx_mcdi_request_poll()
+ * for poll completed mcdi requests, and also with
+ * efx_mcdi_request_start() for post-watchdog completions.
+ */
+ EFSYS_LOCK(enp->en_eslp, state);
+ emrp = emip->emi_pending_req;
+ ev_cpl = emip->emi_ev_cpl;
+ if (emrp != NULL && emip->emi_ev_cpl) {
+ emip->emi_pending_req = NULL;
+
+ emrp->emr_out_length_used = 0;
+ emrp->emr_rc = rc;
+ ++emip->emi_aborted;
+ }
+
+ /*
+ * Since we're running in parallel with a request, consume the
+ * status word before dropping the lock.
+ */
+ if (rc == EIO || rc == EINTR) {
+ EFSYS_SPIN(EFX_MCDI_STATUS_SLEEP_US);
+ (void) efx_mcdi_poll_reboot(enp);
+ emip->emi_new_epoch = B_TRUE;
+ }
+
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ efx_mcdi_raise_exception(enp, emrp, rc);
+
+ if (emrp != NULL && ev_cpl)
+ emtp->emt_ev_cpl(emtp->emt_context);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_version(
+ __in efx_nic_t *enp,
+ __out_ecount_opt(4) uint16_t versionp[4],
+ __out_opt uint32_t *buildp,
+ __out_opt efx_mcdi_boot_t *statusp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MAX(MC_CMD_GET_VERSION_IN_LEN,
+ MC_CMD_GET_VERSION_OUT_LEN),
+ MAX(MC_CMD_GET_BOOT_STATUS_IN_LEN,
+ MC_CMD_GET_BOOT_STATUS_OUT_LEN))];
+ efx_word_t *ver_words;
+ uint16_t version[4];
+ uint32_t build;
+ efx_mcdi_boot_t status;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_VERSION;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_VERSION_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_VERSION_OUT_LEN;
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ /* bootrom support */
+ if (req.emr_out_length_used == MC_CMD_GET_VERSION_V0_OUT_LEN) {
+ version[0] = version[1] = version[2] = version[3] = 0;
+ build = MCDI_OUT_DWORD(req, GET_VERSION_OUT_FIRMWARE);
+
+ goto version;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_GET_VERSION_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ ver_words = MCDI_OUT2(req, efx_word_t, GET_VERSION_OUT_VERSION);
+ version[0] = EFX_WORD_FIELD(ver_words[0], EFX_WORD_0);
+ version[1] = EFX_WORD_FIELD(ver_words[1], EFX_WORD_0);
+ version[2] = EFX_WORD_FIELD(ver_words[2], EFX_WORD_0);
+ version[3] = EFX_WORD_FIELD(ver_words[3], EFX_WORD_0);
+ build = MCDI_OUT_DWORD(req, GET_VERSION_OUT_FIRMWARE);
+
+version:
+ /* The bootrom doesn't understand BOOT_STATUS */
+ if (MC_FW_VERSION_IS_BOOTLOADER(build)) {
+ status = EFX_MCDI_BOOT_ROM;
+ goto out;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_BOOT_STATUS;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_BOOT_STATUS_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_BOOT_STATUS_OUT_LEN;
+
+ efx_mcdi_execute_quiet(enp, &req);
+
+ if (req.emr_rc == EACCES) {
+ /* Unprivileged functions cannot access BOOT_STATUS */
+ status = EFX_MCDI_BOOT_PRIMARY;
+ version[0] = version[1] = version[2] = version[3] = 0;
+ build = 0;
+ goto out;
+ }
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail3;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_GET_BOOT_STATUS_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail4;
+ }
+
+ if (MCDI_OUT_DWORD_FIELD(req, GET_BOOT_STATUS_OUT_FLAGS,
+ GET_BOOT_STATUS_OUT_FLAGS_PRIMARY))
+ status = EFX_MCDI_BOOT_PRIMARY;
+ else
+ status = EFX_MCDI_BOOT_SECONDARY;
+
+out:
+ if (versionp != NULL)
+ memcpy(versionp, version, sizeof (version));
+ if (buildp != NULL)
+ *buildp = build;
+ if (statusp != NULL)
+ *statusp = status;
+
+ return (0);
+
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_get_capabilities(
+ __in efx_nic_t *enp,
+ __out_opt uint32_t *flagsp,
+ __out_opt uint16_t *rx_dpcpu_fw_idp,
+ __out_opt uint16_t *tx_dpcpu_fw_idp,
+ __out_opt uint32_t *flags2p,
+ __out_opt uint32_t *tso2ncp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_GET_CAPABILITIES_IN_LEN,
+ MC_CMD_GET_CAPABILITIES_V2_OUT_LEN)];
+ boolean_t v2_capable;
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_CAPABILITIES;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_CAPABILITIES_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_CAPABILITIES_V2_OUT_LEN;
+
+ efx_mcdi_execute_quiet(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_GET_CAPABILITIES_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ if (flagsp != NULL)
+ *flagsp = MCDI_OUT_DWORD(req, GET_CAPABILITIES_OUT_FLAGS1);
+
+ if (rx_dpcpu_fw_idp != NULL)
+ *rx_dpcpu_fw_idp = MCDI_OUT_WORD(req,
+ GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID);
+
+ if (tx_dpcpu_fw_idp != NULL)
+ *tx_dpcpu_fw_idp = MCDI_OUT_WORD(req,
+ GET_CAPABILITIES_OUT_TX_DPCPU_FW_ID);
+
+ if (req.emr_out_length_used < MC_CMD_GET_CAPABILITIES_V2_OUT_LEN)
+ v2_capable = B_FALSE;
+ else
+ v2_capable = B_TRUE;
+
+ if (flags2p != NULL) {
+ *flags2p = (v2_capable) ?
+ MCDI_OUT_DWORD(req, GET_CAPABILITIES_V2_OUT_FLAGS2) :
+ 0;
+ }
+
+ if (tso2ncp != NULL) {
+ *tso2ncp = (v2_capable) ?
+ MCDI_OUT_WORD(req,
+ GET_CAPABILITIES_V2_OUT_TX_TSO_V2_N_CONTEXTS) :
+ 0;
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+efx_mcdi_do_reboot(
+ __in efx_nic_t *enp,
+ __in boolean_t after_assertion)
+{
+ uint8_t payload[MAX(MC_CMD_REBOOT_IN_LEN, MC_CMD_REBOOT_OUT_LEN)];
+ efx_mcdi_req_t req;
+ efx_rc_t rc;
+
+ /*
+ * We could require the caller to have caused en_mod_flags=0 to
+ * call this function. This doesn't help the other port though,
+ * who's about to get the MC ripped out from underneath them.
+ * Since they have to cope with the subsequent fallout of MCDI
+ * failures, we should as well.
+ */
+ EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_REBOOT;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_REBOOT_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_REBOOT_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, REBOOT_IN_FLAGS,
+ (after_assertion ? MC_CMD_REBOOT_FLAGS_AFTER_ASSERTION : 0));
+
+ efx_mcdi_execute_quiet(enp, &req);
+
+ if (req.emr_rc == EACCES) {
+ /* Unprivileged functions cannot reboot the MC. */
+ goto out;
+ }
+
+ /* A successful reboot request returns EIO. */
+ if (req.emr_rc != 0 && req.emr_rc != EIO) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+out:
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_reboot(
+ __in efx_nic_t *enp)
+{
+ return (efx_mcdi_do_reboot(enp, B_FALSE));
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_exit_assertion_handler(
+ __in efx_nic_t *enp)
+{
+ return (efx_mcdi_do_reboot(enp, B_TRUE));
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_read_assertion(
+ __in efx_nic_t *enp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_GET_ASSERTS_IN_LEN,
+ MC_CMD_GET_ASSERTS_OUT_LEN)];
+ const char *reason;
+ unsigned int flags;
+ unsigned int index;
+ unsigned int ofst;
+ int retry;
+ efx_rc_t rc;
+
+ /*
+ * Before we attempt to chat to the MC, we should verify that the MC
+ * isn't in it's assertion handler, either due to a previous reboot,
+ * or because we're reinitializing due to an eec_exception().
+ *
+ * Use GET_ASSERTS to read any assertion state that may be present.
+ * Retry this command twice. Once because a boot-time assertion failure
+ * might cause the 1st MCDI request to fail. And once again because
+ * we might race with efx_mcdi_exit_assertion_handler() running on
+ * partner port(s) on the same NIC.
+ */
+ retry = 2;
+ do {
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_ASSERTS;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_ASSERTS_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_ASSERTS_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, GET_ASSERTS_IN_CLEAR, 1);
+ efx_mcdi_execute_quiet(enp, &req);
+
+ } while ((req.emr_rc == EINTR || req.emr_rc == EIO) && retry-- > 0);
+
+ if (req.emr_rc != 0) {
+ if (req.emr_rc == EACCES) {
+ /* Unprivileged functions cannot clear assertions. */
+ goto out;
+ }
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_GET_ASSERTS_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ /* Print out any assertion state recorded */
+ flags = MCDI_OUT_DWORD(req, GET_ASSERTS_OUT_GLOBAL_FLAGS);
+ if (flags == MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS)
+ return (0);
+
+ reason = (flags == MC_CMD_GET_ASSERTS_FLAGS_SYS_FAIL)
+ ? "system-level assertion"
+ : (flags == MC_CMD_GET_ASSERTS_FLAGS_THR_FAIL)
+ ? "thread-level assertion"
+ : (flags == MC_CMD_GET_ASSERTS_FLAGS_WDOG_FIRED)
+ ? "watchdog reset"
+ : (flags == MC_CMD_GET_ASSERTS_FLAGS_ADDR_TRAP)
+ ? "illegal address trap"
+ : "unknown assertion";
+ EFSYS_PROBE3(mcpu_assertion,
+ const char *, reason, unsigned int,
+ MCDI_OUT_DWORD(req, GET_ASSERTS_OUT_SAVED_PC_OFFS),
+ unsigned int,
+ MCDI_OUT_DWORD(req, GET_ASSERTS_OUT_THREAD_OFFS));
+
+ /* Print out the registers (r1 ... r31) */
+ ofst = MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_OFST;
+ for (index = 1;
+ index < 1 + MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_NUM;
+ index++) {
+ EFSYS_PROBE2(mcpu_register, unsigned int, index, unsigned int,
+ EFX_DWORD_FIELD(*MCDI_OUT(req, efx_dword_t, ofst),
+ EFX_DWORD_0));
+ ofst += sizeof (efx_dword_t);
+ }
+ EFSYS_ASSERT(ofst <= MC_CMD_GET_ASSERTS_OUT_LEN);
+
+out:
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+
+/*
+ * Internal routines for for specific MCDI requests.
+ */
+
+ __checkReturn efx_rc_t
+efx_mcdi_drv_attach(
+ __in efx_nic_t *enp,
+ __in boolean_t attach)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_DRV_ATTACH_IN_LEN,
+ MC_CMD_DRV_ATTACH_EXT_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_DRV_ATTACH;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_DRV_ATTACH_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_DRV_ATTACH_EXT_OUT_LEN;
+
+ /*
+ * Use DONT_CARE for the datapath firmware type to ensure that the
+ * driver can attach to an unprivileged function. The datapath firmware
+ * type to use is controlled by the 'sfboot' utility.
+ */
+ MCDI_IN_SET_DWORD(req, DRV_ATTACH_IN_NEW_STATE, attach ? 1 : 0);
+ MCDI_IN_SET_DWORD(req, DRV_ATTACH_IN_UPDATE, 1);
+ MCDI_IN_SET_DWORD(req, DRV_ATTACH_IN_FIRMWARE_ID, MC_CMD_FW_DONT_CARE);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_DRV_ATTACH_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_get_board_cfg(
+ __in efx_nic_t *enp,
+ __out_opt uint32_t *board_typep,
+ __out_opt efx_dword_t *capabilitiesp,
+ __out_ecount_opt(6) uint8_t mac_addrp[6])
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_GET_BOARD_CFG_IN_LEN,
+ MC_CMD_GET_BOARD_CFG_OUT_LENMIN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_BOARD_CFG;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_BOARD_CFG_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_BOARD_CFG_OUT_LENMIN;
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_GET_BOARD_CFG_OUT_LENMIN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ if (mac_addrp != NULL) {
+ uint8_t *addrp;
+
+ if (emip->emi_port == 1) {
+ addrp = MCDI_OUT2(req, uint8_t,
+ GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0);
+ } else if (emip->emi_port == 2) {
+ addrp = MCDI_OUT2(req, uint8_t,
+ GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT1);
+ } else {
+ rc = EINVAL;
+ goto fail3;
+ }
+
+ EFX_MAC_ADDR_COPY(mac_addrp, addrp);
+ }
+
+ if (capabilitiesp != NULL) {
+ if (emip->emi_port == 1) {
+ *capabilitiesp = *MCDI_OUT2(req, efx_dword_t,
+ GET_BOARD_CFG_OUT_CAPABILITIES_PORT0);
+ } else if (emip->emi_port == 2) {
+ *capabilitiesp = *MCDI_OUT2(req, efx_dword_t,
+ GET_BOARD_CFG_OUT_CAPABILITIES_PORT1);
+ } else {
+ rc = EINVAL;
+ goto fail4;
+ }
+ }
+
+ if (board_typep != NULL) {
+ *board_typep = MCDI_OUT_DWORD(req,
+ GET_BOARD_CFG_OUT_BOARD_TYPE);
+ }
+
+ return (0);
+
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_get_resource_limits(
+ __in efx_nic_t *enp,
+ __out_opt uint32_t *nevqp,
+ __out_opt uint32_t *nrxqp,
+ __out_opt uint32_t *ntxqp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_GET_RESOURCE_LIMITS_IN_LEN,
+ MC_CMD_GET_RESOURCE_LIMITS_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_RESOURCE_LIMITS;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_RESOURCE_LIMITS_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_RESOURCE_LIMITS_OUT_LEN;
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_GET_RESOURCE_LIMITS_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ if (nevqp != NULL)
+ *nevqp = MCDI_OUT_DWORD(req, GET_RESOURCE_LIMITS_OUT_EVQ);
+ if (nrxqp != NULL)
+ *nrxqp = MCDI_OUT_DWORD(req, GET_RESOURCE_LIMITS_OUT_RXQ);
+ if (ntxqp != NULL)
+ *ntxqp = MCDI_OUT_DWORD(req, GET_RESOURCE_LIMITS_OUT_TXQ);
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_get_phy_cfg(
+ __in efx_nic_t *enp)
+{
+ efx_port_t *epp = &(enp->en_port);
+ efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_GET_PHY_CFG_IN_LEN,
+ MC_CMD_GET_PHY_CFG_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_PHY_CFG;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_PHY_CFG_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_PHY_CFG_OUT_LEN;
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_GET_PHY_CFG_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ encp->enc_phy_type = MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_TYPE);
+#if EFSYS_OPT_NAMES
+ (void) strncpy(encp->enc_phy_name,
+ MCDI_OUT2(req, char, GET_PHY_CFG_OUT_NAME),
+ MIN(sizeof (encp->enc_phy_name) - 1,
+ MC_CMD_GET_PHY_CFG_OUT_NAME_LEN));
+#endif /* EFSYS_OPT_NAMES */
+ (void) memset(encp->enc_phy_revision, 0,
+ sizeof (encp->enc_phy_revision));
+ memcpy(encp->enc_phy_revision,
+ MCDI_OUT2(req, char, GET_PHY_CFG_OUT_REVISION),
+ MIN(sizeof (encp->enc_phy_revision) - 1,
+ MC_CMD_GET_PHY_CFG_OUT_REVISION_LEN));
+#if EFSYS_OPT_PHY_LED_CONTROL
+ encp->enc_led_mask = ((1 << EFX_PHY_LED_DEFAULT) |
+ (1 << EFX_PHY_LED_OFF) |
+ (1 << EFX_PHY_LED_ON));
+#endif /* EFSYS_OPT_PHY_LED_CONTROL */
+
+ /* Get the media type of the fixed port, if recognised. */
+ EFX_STATIC_ASSERT(MC_CMD_MEDIA_XAUI == EFX_PHY_MEDIA_XAUI);
+ EFX_STATIC_ASSERT(MC_CMD_MEDIA_CX4 == EFX_PHY_MEDIA_CX4);
+ EFX_STATIC_ASSERT(MC_CMD_MEDIA_KX4 == EFX_PHY_MEDIA_KX4);
+ EFX_STATIC_ASSERT(MC_CMD_MEDIA_XFP == EFX_PHY_MEDIA_XFP);
+ EFX_STATIC_ASSERT(MC_CMD_MEDIA_SFP_PLUS == EFX_PHY_MEDIA_SFP_PLUS);
+ EFX_STATIC_ASSERT(MC_CMD_MEDIA_BASE_T == EFX_PHY_MEDIA_BASE_T);
+ EFX_STATIC_ASSERT(MC_CMD_MEDIA_QSFP_PLUS == EFX_PHY_MEDIA_QSFP_PLUS);
+ epp->ep_fixed_port_type =
+ (efx_phy_media_type_t) MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_MEDIA_TYPE);
+ if (epp->ep_fixed_port_type >= EFX_PHY_MEDIA_NTYPES)
+ epp->ep_fixed_port_type = EFX_PHY_MEDIA_INVALID;
+
+ epp->ep_phy_cap_mask =
+ MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_SUPPORTED_CAP);
+#if EFSYS_OPT_PHY_FLAGS
+ encp->enc_phy_flags_mask = MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_FLAGS);
+#endif /* EFSYS_OPT_PHY_FLAGS */
+
+ encp->enc_port = (uint8_t)MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_PRT);
+
+ /* Populate internal state */
+ encp->enc_mcdi_mdio_channel =
+ (uint8_t)MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_CHANNEL);
+
+#if EFSYS_OPT_PHY_STATS
+ encp->enc_mcdi_phy_stat_mask =
+ MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_STATS_MASK);
+#endif /* EFSYS_OPT_PHY_STATS */
+
+#if EFSYS_OPT_BIST
+ encp->enc_bist_mask = 0;
+ if (MCDI_OUT_DWORD_FIELD(req, GET_PHY_CFG_OUT_FLAGS,
+ GET_PHY_CFG_OUT_BIST_CABLE_SHORT))
+ encp->enc_bist_mask |= (1 << EFX_BIST_TYPE_PHY_CABLE_SHORT);
+ if (MCDI_OUT_DWORD_FIELD(req, GET_PHY_CFG_OUT_FLAGS,
+ GET_PHY_CFG_OUT_BIST_CABLE_LONG))
+ encp->enc_bist_mask |= (1 << EFX_BIST_TYPE_PHY_CABLE_LONG);
+ if (MCDI_OUT_DWORD_FIELD(req, GET_PHY_CFG_OUT_FLAGS,
+ GET_PHY_CFG_OUT_BIST))
+ encp->enc_bist_mask |= (1 << EFX_BIST_TYPE_PHY_NORMAL);
+#endif /* EFSYS_OPT_BIST */
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_firmware_update_supported(
+ __in efx_nic_t *enp,
+ __out boolean_t *supportedp)
+{
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+ efx_rc_t rc;
+
+ if (emcop != NULL) {
+ if ((rc = emcop->emco_feature_supported(enp,
+ EFX_MCDI_FEATURE_FW_UPDATE, supportedp)) != 0)
+ goto fail1;
+ } else {
+ /* Earlier devices always supported updates */
+ *supportedp = B_TRUE;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_macaddr_change_supported(
+ __in efx_nic_t *enp,
+ __out boolean_t *supportedp)
+{
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+ efx_rc_t rc;
+
+ if (emcop != NULL) {
+ if ((rc = emcop->emco_feature_supported(enp,
+ EFX_MCDI_FEATURE_MACADDR_CHANGE, supportedp)) != 0)
+ goto fail1;
+ } else {
+ /* Earlier devices always supported MAC changes */
+ *supportedp = B_TRUE;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_link_control_supported(
+ __in efx_nic_t *enp,
+ __out boolean_t *supportedp)
+{
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+ efx_rc_t rc;
+
+ if (emcop != NULL) {
+ if ((rc = emcop->emco_feature_supported(enp,
+ EFX_MCDI_FEATURE_LINK_CONTROL, supportedp)) != 0)
+ goto fail1;
+ } else {
+ /* Earlier devices always supported link control */
+ *supportedp = B_TRUE;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_mac_spoofing_supported(
+ __in efx_nic_t *enp,
+ __out boolean_t *supportedp)
+{
+ const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
+ efx_rc_t rc;
+
+ if (emcop != NULL) {
+ if ((rc = emcop->emco_feature_supported(enp,
+ EFX_MCDI_FEATURE_MAC_SPOOFING, supportedp)) != 0)
+ goto fail1;
+ } else {
+ /* Earlier devices always supported MAC spoofing */
+ *supportedp = B_TRUE;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+#if EFSYS_OPT_BIST
+
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+/*
+ * Enter bist offline mode. This is a fw mode which puts the NIC into a state
+ * where memory BIST tests can be run and not much else can interfere or happen.
+ * A reboot is required to exit this mode.
+ */
+ __checkReturn efx_rc_t
+efx_mcdi_bist_enable_offline(
+ __in efx_nic_t *enp)
+{
+ efx_mcdi_req_t req;
+ efx_rc_t rc;
+
+ EFX_STATIC_ASSERT(MC_CMD_ENABLE_OFFLINE_BIST_IN_LEN == 0);
+ EFX_STATIC_ASSERT(MC_CMD_ENABLE_OFFLINE_BIST_OUT_LEN == 0);
+
+ req.emr_cmd = MC_CMD_ENABLE_OFFLINE_BIST;
+ req.emr_in_buf = NULL;
+ req.emr_in_length = 0;
+ req.emr_out_buf = NULL;
+ req.emr_out_length = 0;
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
+
+ __checkReturn efx_rc_t
+efx_mcdi_bist_start(
+ __in efx_nic_t *enp,
+ __in efx_bist_type_t type)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_START_BIST_IN_LEN,
+ MC_CMD_START_BIST_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_START_BIST;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_START_BIST_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_START_BIST_OUT_LEN;
+
+ switch (type) {
+ case EFX_BIST_TYPE_PHY_NORMAL:
+ MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE, MC_CMD_PHY_BIST);
+ break;
+ case EFX_BIST_TYPE_PHY_CABLE_SHORT:
+ MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
+ MC_CMD_PHY_BIST_CABLE_SHORT);
+ break;
+ case EFX_BIST_TYPE_PHY_CABLE_LONG:
+ MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
+ MC_CMD_PHY_BIST_CABLE_LONG);
+ break;
+ case EFX_BIST_TYPE_MC_MEM:
+ MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
+ MC_CMD_MC_MEM_BIST);
+ break;
+ case EFX_BIST_TYPE_SAT_MEM:
+ MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
+ MC_CMD_PORT_MEM_BIST);
+ break;
+ case EFX_BIST_TYPE_REG:
+ MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
+ MC_CMD_REG_BIST);
+ break;
+ default:
+ EFSYS_ASSERT(0);
+ }
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+#endif /* EFSYS_OPT_BIST */
+
+
+/* Enable logging of some events (e.g. link state changes) */
+ __checkReturn efx_rc_t
+efx_mcdi_log_ctrl(
+ __in efx_nic_t *enp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_LOG_CTRL_IN_LEN,
+ MC_CMD_LOG_CTRL_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_LOG_CTRL;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_LOG_CTRL_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_LOG_CTRL_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, LOG_CTRL_IN_LOG_DEST,
+ MC_CMD_LOG_CTRL_IN_LOG_DEST_EVQ);
+ MCDI_IN_SET_DWORD(req, LOG_CTRL_IN_LOG_DEST_EVQ, 0);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+
+#if EFSYS_OPT_MAC_STATS
+
+typedef enum efx_stats_action_e {
+ EFX_STATS_CLEAR,
+ EFX_STATS_UPLOAD,
+ EFX_STATS_ENABLE_NOEVENTS,
+ EFX_STATS_ENABLE_EVENTS,
+ EFX_STATS_DISABLE,
+} efx_stats_action_t;
+
+static __checkReturn efx_rc_t
+efx_mcdi_mac_stats(
+ __in efx_nic_t *enp,
+ __in_opt efsys_mem_t *esmp,
+ __in efx_stats_action_t action,
+ __in uint16_t period_ms)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_MAC_STATS_IN_LEN,
+ MC_CMD_MAC_STATS_OUT_DMA_LEN)];
+ int clear = (action == EFX_STATS_CLEAR);
+ int upload = (action == EFX_STATS_UPLOAD);
+ int enable = (action == EFX_STATS_ENABLE_NOEVENTS);
+ int events = (action == EFX_STATS_ENABLE_EVENTS);
+ int disable = (action == EFX_STATS_DISABLE);
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_MAC_STATS;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_MAC_STATS_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_MAC_STATS_OUT_DMA_LEN;
+
+ MCDI_IN_POPULATE_DWORD_6(req, MAC_STATS_IN_CMD,
+ MAC_STATS_IN_DMA, upload,
+ MAC_STATS_IN_CLEAR, clear,
+ MAC_STATS_IN_PERIODIC_CHANGE, enable | events | disable,
+ MAC_STATS_IN_PERIODIC_ENABLE, enable | events,
+ MAC_STATS_IN_PERIODIC_NOEVENT, !events,
+ MAC_STATS_IN_PERIOD_MS, (enable | events) ? period_ms : 0);
+
+ if (esmp != NULL) {
+ int bytes = MC_CMD_MAC_NSTATS * sizeof (uint64_t);
+
+ EFX_STATIC_ASSERT(MC_CMD_MAC_NSTATS * sizeof (uint64_t) <=
+ EFX_MAC_STATS_SIZE);
+
+ MCDI_IN_SET_DWORD(req, MAC_STATS_IN_DMA_ADDR_LO,
+ EFSYS_MEM_ADDR(esmp) & 0xffffffff);
+ MCDI_IN_SET_DWORD(req, MAC_STATS_IN_DMA_ADDR_HI,
+ EFSYS_MEM_ADDR(esmp) >> 32);
+ MCDI_IN_SET_DWORD(req, MAC_STATS_IN_DMA_LEN, bytes);
+ } else {
+ EFSYS_ASSERT(!upload && !enable && !events);
+ }
+
+ /*
+ * NOTE: Do not use EVB_PORT_ID_ASSIGNED when disabling periodic stats,
+ * as this may fail (and leave periodic DMA enabled) if the
+ * vadapter has already been deleted.
+ */
+ MCDI_IN_SET_DWORD(req, MAC_STATS_IN_PORT_ID,
+ (disable ? EVB_PORT_ID_NULL : enp->en_vport_id));
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ /* EF10: Expect ENOENT if no DMA queues are initialised */
+ if ((req.emr_rc != ENOENT) ||
+ (enp->en_rx_qcount + enp->en_tx_qcount != 0)) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_mac_stats_clear(
+ __in efx_nic_t *enp)
+{
+ efx_rc_t rc;
+
+ if ((rc = efx_mcdi_mac_stats(enp, NULL, EFX_STATS_CLEAR, 0)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_mac_stats_upload(
+ __in efx_nic_t *enp,
+ __in efsys_mem_t *esmp)
+{
+ efx_rc_t rc;
+
+ /*
+ * The MC DMAs aggregate statistics for our convenience, so we can
+ * avoid having to pull the statistics buffer into the cache to
+ * maintain cumulative statistics.
+ */
+ if ((rc = efx_mcdi_mac_stats(enp, esmp, EFX_STATS_UPLOAD, 0)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_mac_stats_periodic(
+ __in efx_nic_t *enp,
+ __in efsys_mem_t *esmp,
+ __in uint16_t period_ms,
+ __in boolean_t events)
+{
+ efx_rc_t rc;
+
+ /*
+ * The MC DMAs aggregate statistics for our convenience, so we can
+ * avoid having to pull the statistics buffer into the cache to
+ * maintain cumulative statistics.
+ * Huntington uses a fixed 1sec period.
+ * Medford uses a fixed 1sec period before v6.2.1.1033 firmware.
+ */
+ if (period_ms == 0)
+ rc = efx_mcdi_mac_stats(enp, NULL, EFX_STATS_DISABLE, 0);
+ else if (events)
+ rc = efx_mcdi_mac_stats(enp, esmp, EFX_STATS_ENABLE_EVENTS,
+ period_ms);
+ else
+ rc = efx_mcdi_mac_stats(enp, esmp, EFX_STATS_ENABLE_NOEVENTS,
+ period_ms);
+
+ if (rc != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+#endif /* EFSYS_OPT_MAC_STATS */
+
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+
+/*
+ * This function returns the pf and vf number of a function. If it is a pf the
+ * vf number is 0xffff. The vf number is the index of the vf on that
+ * function. So if you have 3 vfs on pf 0 the 3 vfs will return (pf=0,vf=0),
+ * (pf=0,vf=1), (pf=0,vf=2) aand the pf will return (pf=0, vf=0xffff).
+ */
+ __checkReturn efx_rc_t
+efx_mcdi_get_function_info(
+ __in efx_nic_t *enp,
+ __out uint32_t *pfp,
+ __out_opt uint32_t *vfp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_GET_FUNCTION_INFO_IN_LEN,
+ MC_CMD_GET_FUNCTION_INFO_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_FUNCTION_INFO;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_FUNCTION_INFO_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_FUNCTION_INFO_OUT_LEN;
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_GET_FUNCTION_INFO_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ *pfp = MCDI_OUT_DWORD(req, GET_FUNCTION_INFO_OUT_PF);
+ if (vfp != NULL)
+ *vfp = MCDI_OUT_DWORD(req, GET_FUNCTION_INFO_OUT_VF);
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_privilege_mask(
+ __in efx_nic_t *enp,
+ __in uint32_t pf,
+ __in uint32_t vf,
+ __out uint32_t *maskp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_PRIVILEGE_MASK_IN_LEN,
+ MC_CMD_PRIVILEGE_MASK_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_PRIVILEGE_MASK;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_PRIVILEGE_MASK_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_PRIVILEGE_MASK_OUT_LEN;
+
+ MCDI_IN_POPULATE_DWORD_2(req, PRIVILEGE_MASK_IN_FUNCTION,
+ PRIVILEGE_MASK_IN_FUNCTION_PF, pf,
+ PRIVILEGE_MASK_IN_FUNCTION_VF, vf);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_PRIVILEGE_MASK_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ *maskp = MCDI_OUT_DWORD(req, PRIVILEGE_MASK_OUT_OLD_MASK);
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
+
+ __checkReturn efx_rc_t
+efx_mcdi_set_workaround(
+ __in efx_nic_t *enp,
+ __in uint32_t type,
+ __in boolean_t enabled,
+ __out_opt uint32_t *flagsp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_WORKAROUND_IN_LEN,
+ MC_CMD_WORKAROUND_EXT_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_WORKAROUND;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_WORKAROUND_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_WORKAROUND_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, WORKAROUND_IN_TYPE, type);
+ MCDI_IN_SET_DWORD(req, WORKAROUND_IN_ENABLED, enabled ? 1 : 0);
+
+ efx_mcdi_execute_quiet(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (flagsp != NULL) {
+ if (req.emr_out_length_used >= MC_CMD_WORKAROUND_EXT_OUT_LEN)
+ *flagsp = MCDI_OUT_DWORD(req, WORKAROUND_EXT_OUT_FLAGS);
+ else
+ *flagsp = 0;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+
+ __checkReturn efx_rc_t
+efx_mcdi_get_workarounds(
+ __in efx_nic_t *enp,
+ __out_opt uint32_t *implementedp,
+ __out_opt uint32_t *enabledp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MC_CMD_GET_WORKAROUNDS_OUT_LEN];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_WORKAROUNDS;
+ req.emr_in_buf = NULL;
+ req.emr_in_length = 0;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_WORKAROUNDS_OUT_LEN;
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (implementedp != NULL) {
+ *implementedp =
+ MCDI_OUT_DWORD(req, GET_WORKAROUNDS_OUT_IMPLEMENTED);
+ }
+
+ if (enabledp != NULL) {
+ *enabledp = MCDI_OUT_DWORD(req, GET_WORKAROUNDS_OUT_ENABLED);
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+/*
+ * Size of media information page in accordance with SFF-8472 and SFF-8436.
+ * It is used in MCDI interface as well.
+ */
+#define EFX_PHY_MEDIA_INFO_PAGE_SIZE 0x80
+
+static __checkReturn efx_rc_t
+efx_mcdi_get_phy_media_info(
+ __in efx_nic_t *enp,
+ __in uint32_t mcdi_page,
+ __in uint8_t offset,
+ __in uint8_t len,
+ __out_bcount(len) uint8_t *data)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN,
+ MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(
+ EFX_PHY_MEDIA_INFO_PAGE_SIZE))];
+ efx_rc_t rc;
+
+ EFSYS_ASSERT((uint32_t)offset + len <= EFX_PHY_MEDIA_INFO_PAGE_SIZE);
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_PHY_MEDIA_INFO;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length =
+ MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(EFX_PHY_MEDIA_INFO_PAGE_SIZE);
+
+ MCDI_IN_SET_DWORD(req, GET_PHY_MEDIA_INFO_IN_PAGE, mcdi_page);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used !=
+ MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(EFX_PHY_MEDIA_INFO_PAGE_SIZE)) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ if (MCDI_OUT_DWORD(req, GET_PHY_MEDIA_INFO_OUT_DATALEN) !=
+ EFX_PHY_MEDIA_INFO_PAGE_SIZE) {
+ rc = EIO;
+ goto fail3;
+ }
+
+ memcpy(data,
+ MCDI_OUT2(req, uint8_t, GET_PHY_MEDIA_INFO_OUT_DATA) + offset,
+ len);
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+/*
+ * 2-wire device address of the base information in accordance with SFF-8472
+ * Diagnostic Monitoring Interface for Optical Transceivers section
+ * 4 Memory Organization.
+ */
+#define EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_BASE 0xA0
+
+/*
+ * 2-wire device address of the digital diagnostics monitoring interface
+ * in accordance with SFF-8472 Diagnostic Monitoring Interface for Optical
+ * Transceivers section 4 Memory Organization.
+ */
+#define EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_DDM 0xA2
+
+/*
+ * Hard wired 2-wire device address for QSFP+ in accordance with SFF-8436
+ * QSFP+ 10 Gbs 4X PLUGGABLE TRANSCEIVER section 7.4 Device Addressing and
+ * Operation.
+ */
+#define EFX_PHY_MEDIA_INFO_DEV_ADDR_QSFP 0xA0
+
+ __checkReturn efx_rc_t
+efx_mcdi_phy_module_get_info(
+ __in efx_nic_t *enp,
+ __in uint8_t dev_addr,
+ __in uint8_t offset,
+ __in uint8_t len,
+ __out_bcount(len) uint8_t *data)
+{
+ efx_port_t *epp = &(enp->en_port);
+ efx_rc_t rc;
+ uint32_t mcdi_lower_page;
+ uint32_t mcdi_upper_page;
+
+ EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
+
+ /*
+ * Map device address to MC_CMD_GET_PHY_MEDIA_INFO pages.
+ * Offset plus length interface allows to access page 0 only.
+ * I.e. non-zero upper pages are not accessible.
+ * See SFF-8472 section 4 Memory Organization and SFF-8436 section 7.6
+ * QSFP+ Memory Map for details on how information is structured
+ * and accessible.
+ */
+ switch (epp->ep_fixed_port_type) {
+ case EFX_PHY_MEDIA_SFP_PLUS:
+ /*
+ * In accordance with SFF-8472 Diagnostic Monitoring
+ * Interface for Optical Transceivers section 4 Memory
+ * Organization two 2-wire addresses are defined.
+ */
+ switch (dev_addr) {
+ /* Base information */
+ case EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_BASE:
+ /*
+ * MCDI page 0 should be used to access lower
+ * page 0 (0x00 - 0x7f) at the device address 0xA0.
+ */
+ mcdi_lower_page = 0;
+ /*
+ * MCDI page 1 should be used to access upper
+ * page 0 (0x80 - 0xff) at the device address 0xA0.
+ */
+ mcdi_upper_page = 1;
+ break;
+ /* Diagnostics */
+ case EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_DDM:
+ /*
+ * MCDI page 2 should be used to access lower
+ * page 0 (0x00 - 0x7f) at the device address 0xA2.
+ */
+ mcdi_lower_page = 2;
+ /*
+ * MCDI page 3 should be used to access upper
+ * page 0 (0x80 - 0xff) at the device address 0xA2.
+ */
+ mcdi_upper_page = 3;
+ break;
+ default:
+ rc = ENOTSUP;
+ goto fail1;
+ }
+ break;
+ case EFX_PHY_MEDIA_QSFP_PLUS:
+ switch (dev_addr) {
+ case EFX_PHY_MEDIA_INFO_DEV_ADDR_QSFP:
+ /*
+ * MCDI page -1 should be used to access lower page 0
+ * (0x00 - 0x7f).
+ */
+ mcdi_lower_page = (uint32_t)-1;
+ /*
+ * MCDI page 0 should be used to access upper page 0
+ * (0x80h - 0xff).
+ */
+ mcdi_upper_page = 0;
+ break;
+ default:
+ rc = ENOTSUP;
+ goto fail1;
+ }
+ break;
+ default:
+ rc = ENOTSUP;
+ goto fail1;
+ }
+
+ if (offset < EFX_PHY_MEDIA_INFO_PAGE_SIZE) {
+ uint8_t read_len =
+ MIN(len, EFX_PHY_MEDIA_INFO_PAGE_SIZE - offset);
+
+ rc = efx_mcdi_get_phy_media_info(enp,
+ mcdi_lower_page, offset, read_len, data);
+ if (rc != 0)
+ goto fail2;
+
+ data += read_len;
+ len -= read_len;
+
+ offset = 0;
+ } else {
+ offset -= EFX_PHY_MEDIA_INFO_PAGE_SIZE;
+ }
+
+ if (len > 0) {
+ EFSYS_ASSERT3U(len, <=, EFX_PHY_MEDIA_INFO_PAGE_SIZE);
+ EFSYS_ASSERT3U(offset, <, EFX_PHY_MEDIA_INFO_PAGE_SIZE);
+
+ rc = efx_mcdi_get_phy_media_info(enp,
+ mcdi_upper_page, offset, len, data);
+ if (rc != 0)
+ goto fail3;
+ }
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+#endif /* EFSYS_OPT_MCDI */
Code Review / deb_dpdk.git / blobdiff